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cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
Author:
羅驥韡 (Pegasus Roe)
Topic:
Complex Numbers
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兩位數加法
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四邊形的特性
【案例】圆柱体内放置一个大球六个小球
第八周作业
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弧度
三角形移動多一格
夜市麻將2
Compare areas by cutting shapes Q1
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